APPARATUS FOR ENABLING REGULATABLE ALTERATION OF THE FRICTION GRIP BETWEEN THE WHEELS OF A CAR AND A SUBSTRUCTURE SUCH AS A ROAD

摘要

PCT No. PCT/SE84/00006 Sec. 371 Date Aug. 14, 1984 Sec. 102(e) Date Aug. 14, 1984 PCT Filed Jan. 13, 1984 PCT Pub. No. WO84/02689 PCT Pub. Date Jul. 19, 1984.A driver training apparatus for simulating skid conditions of an automobile, comprises a separate lifting frame carried by four castor wheels which is disposed under the car and is propelled by the car. Under ordinary driving conditions, the castor wheels turn to follow the movements of the car directed by the driver. Under control of an instructor, however, the frame can raise one or more of the car wheels relative to the ground, to simulate a predetermined skid condition. This can be done either by providing members carried by the frame that are vertically movable relative to the frame, or by raising and lowering the castor wheels relative to the frame.